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ISSN 0253-9993 · Editorial Office of Journal of China Coal Society · 1.474 artikel di indeks
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Artikel Jurnal
Mechanism design and grasping control of compliant mechanical gripper for gangue sorting robot
Mechanical gripper is the key to realize coal gangue separation by intelligent gangue separation robot. In the process of intelligent separation of coal and gangue, there are some problems such as large difference of gangue particle size, wet and slippery surface, large impact force of dynamic…
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Artikel Jurnal
Energy efficiency analysis of integrated coupling between circulating fluidized bed boiler generator unit and garbage and sewage treatment
In order to reduce CO2 emissions and water consumption in coal-fired power generation, improve the efficiency of waste-to-energy incineration, and enhance the speed and efficiency of biological wastewater treatment, a coupled system integrating waste and sewage treatment with circulating fluidized…
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Artikel Jurnal
Advances in geological research of coal-measure natural helium and hydrogen as strategic gas resources
The evaluation and exploration of strategic natural helium and hydrogen resources are of significant national importance. Studies on the occurrence, distribution, genetic mechanisms, and enrichment patterns of helium and hydrogen in coal measures are therefore of particular relevance. This paper…
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Artikel Jurnal
Load spectrum synthesis and amplitude sequence digitization method of shearer drum cutting coal rock
Shearer working conditions have strong stochastic complex and variable factors, its whole life cycle course of stochastic load spectrum acquisition and discrete sequence processing, as well as the whole domain load spectrum synthesis and digitization is the key basic engineering technology common…
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Artikel Jurnal
Disaster mechanism induced by overburden structure and control techniques for close-distance coal seam group
Compared to single-seam mining, the close-distance coal seam group is strongly influenced by the movement of overburden structure resulting from upper seam mining. The mining of the lower seam will trigger a “repetitive” movement of the overburden structure, resulting in more complex ground…
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Artikel Jurnal
Pore structure as well as mechanical and seepage characteristics of hot-pressed coal briquettes with different coal ranks
To address the problem that the strength and permeability of coal briquettes used in physical similarity simulation tests differ significantly from those of raw coal, this study investigates the pore structure, mechanical and seepage characteristics of coal samples with different ranks after…
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Artikel Jurnal
Theory and complete technology for collaborative control of surrounding rock in deep coal mine roadways
China is rich in deep coal resources. With the continuous depletion of shallow coal resources, deep coal mining is imperative. Currently, over 40 coal mines in China have reached or exceeded a mining depth of 1 000 meters, with the deepest reaching 1 510 meters, mainly distributed in the central…
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Artikel Jurnal
Strategic research on mine water resource protection and utilization in coal mines of Yellow River Basin
The ecological protection and high-quality development of Yellow River Basin constitute a major national strategy, however, water scarcity has become the greatest constraint to its development. As an important unconventional water resource, mine water possesses significant strategic potential to…
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Artikel Jurnal
Review on seismic response of tunnel engineering: from dynamic characteristics of rock mass to structural earthquake-resistant analysis
Although tunnel structures are confined by the surrounding strata, and relative movement between the structure and strata is not obvious under seismic loads, resulting in significantly superior seismic performance compared to surface structures, they are not entirely “seismic-free”. With the…
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Artikel Jurnal
Scientific connotation on critical domains backfilling synergistic underground coal gasification for remining shallow difficult residual coals
There are a lot of difficult coal resources in the residual mining areas in China. The shallow residual coal reserves are considerable and have great mining value. Safe recovery can help the continuous supply of coal resources in China. Moreover, the long-term retention of residual coal is easy to…
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Artikel Jurnal
Multi-field coupling theory for modification of multi-scale pore-fracture structures of coal mass
Multi-scale pore-fracture structures are widely occurred in coal reservoirs, and serving as the main spaces for gas storage and transport. Restructuring these multi-scale pore-fracture structures to enhance fluid adsorption and transport behaviors is critical to the successful implementation of…
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Artikel Jurnal
Microbial mechanism of mine water quality evolution and sulfate removal in closed coal mine goaf areas
In recent years, the number of coal mine closures in our country has gradually increased, and abandoned coal mine goaf areas have become potential sources of groundwater pollution, characterized primarily by high sulfate mine water. Under certain conditions, native microbial communities within…
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Artikel Jurnal
Dynamic scheduling strategy of mine auxiliary transportation robot based on digital twin
Mine auxiliary transportation material scheduling is an important part of coal mine safety and efficient production. The transportation environment in coal mines is complex, accidents occur frequently, and the demand for materials is widely distributed. The transportation of materials mainly relies…
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Artikel Jurnal
Strong ground pressure mechanism and arched face control technology during slicing longwall top coal caving in ultra thick coal seam
Weakly cemented overlying strata could induce intense ground pressure in working faces, potentially leading to support crushing, which severely threaten safety and impede production. This study focused on the top coal caving mining of a 55 m ultra-thick coal seam in the top slice of Zhundong No.2…
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Artikel Jurnal
Research and practice on key technologies of 5G+ industrial internet-based intelligent coal mine and intelligent coal caving
Based on the intelligent coal mine construction task of CHN ENERGY Shendong Baode Coal Mine, this paper proposes a general construction scheme for an intelligent mine based on “5G + Industrial Internet" under the principle of ” Unified Data, Unified Model, Unified Platform, and Unified Solution"…
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Artikel Jurnal
Research progress on detection-evaluation-utilization technology of deep special space
The safe and efficient development of deep special space represented by the closed underground mined space, salt caverns, porous aquifers and deep coal seams is an important way and a major strategic demand to ensure the safety of national deep resources and energy. This paper focuses on the…
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Artikel Jurnal
Calculation method of unsteady heat-transfer dimensionless number for surrounding rock and airflow in roadway
Heat release from surrounding rock is the dominant heat source in deep high-temperature mines, and its key parameter—the unsteady heat-transfer dimensionless number Kuτ—directly determines the accuracy of air-temperature prediction. Existing methods for obtaining Kuτ (analytical series, charts…
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Artikel Jurnal
Roof collapse mechanism and key control technology and equipment for mining-affected in coal mines
In response to the challenges posed by complex surrounding rock conditions, high mining intensity, and significant strata pressure in coal mine mining-induced roadways—which often result in dynamic pressure phenomena such as roof collapse and large deformations—the mechanism of roof collapse has…
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Artikel Jurnal
Research progress and key challenges in product regulation of deep coal underground gasification and CO2 sequestration in gasification chamber
Underground Coal Gasification (UCG) is a chemical mining method that converts underground coal into combustible gases such as H2, CH4, and CO through controlled combustion. UCG is an important technical means for achieving clean and efficient utilization of deep coal resources. A large number of…
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Artikel Jurnal
Several key issues and insights in full-scale proppant-support fracturing for deep coal rock gas formations
Our country has abundant coal rock gas resources. Hydraulic fracturing is a key technology for effectively developing coal rock gas reservoirs. Due to the differences in the mechanical properties, microstructure, gas occurrence states, and productivity-controlling factors of deep coal rock compared…
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